Form for plastic building-walls.



IfATBNTED JAN. 1, 1907.

- W. B. DE LHORBE. PORM'FOR PLASTIGBUILD'ING WALLS.

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other material, .wliicl-r {or deterioration of the portion or Fig. 2.

the form of spreader.

srArns PATENT oFFr Specification of Letters Patent. Applicationfiled-Hay '18, 1906. Serial No. 317,461.

L L M' DE LHORBE, or cindieo. ILLINOIS.

.ZIVFZQRM FQIOR'PL'AISVTIC BUI LDlNG-WALLS.

Patented J an..1, 1907.

$0 LZZ' whom, it may coiwern:

Be itknown that-I ,"VILLIAM E. DE LHoRBE,

a citizen: of the Unit-ed States, residing at Chicago,- n'the'county'oi' (cola and State of uois, have invent-ed a certain new and a usefulImprovem'ent in Forms for Plastic Building lvalls, of-"which" thefollowing isa specification.

Myinvention relates to forms'for use in the construction ofbuildingwalls torn'ied of cement, concrete,-

or other plastic material. a I It'is-c-ommon practice in building walls'of plasticmateri'al'to'employ forms of lumber or are built upin placeand then removed, with the consequentloss material which constitiite ssuch -forms. 7 l I The object of my invention ist'o provide a form whichmay be used over and over again, shall be, practi callyspeaking,ndestructible.

and may be adapted to walls of various thick nesses and dimensions.

It is also an object to provide a torni which -may be-n'sed continuousythat is, a form by means of whichthe wall maybe built up cont nuously.without actually removing the form, but merely elevating it' from timeto time 3p the wall rises during the process ofconstruction. 0

I obtain my objects by-the apparatus illustrated in the accompanyingclrawings, in

which.

Figure l is aside view of two interlocked forms.v Fig. 2 is a sectionalview taken transversely through the wall, sh owing theforms Fig. 3 is anenlarged View of the spreading mechanism shown at the upper Fig; 4 is asectional view taken on line 4 a, Fig. 3. Fig. 5 is a plan view of thepart shown in Fig. fragmentary view showing a modification inmodification int-he form of spreader. F igS 1s a detail view of alocking-block for securing adjacent forms together. i Fig. 9 is a detailview Illustrating the manner tached-thereto are tlie uprights l), whichpro-' Fig. 6 is a rights I) and receive the tail-nuts h in such Fig. 7shows another a j ect above the upper edge of plate at. These uprightsconsist of still beams of any suitable material and near their upperextremities carry a spreading device, which. may be constructed invariety. of ways. In the pre-' ierr'ed form (shown in Figs. 1 to 5,inclusive) said uprights are apertured at b to receive anotched,corrugated, or otherwise roughened spreading-bar c, which I prefer toarrange'up on edge in the manner shown. Said apertures I) are largeenough to permit the free passage of bar c without engaging it, and inorder to maintain the upper extremities of uprights b at a sui'licientdistance apart clamps (Z are located just inside of said uprights andare-adapted tobe bolted or otherwise rigidly adjustably secured to saidspreading-bar. I The spreading device, however, may assume otherforms-for example, the one shown in Fig. 6;

In the form of spreader shown in Fig. 6 the spreading-bar e'isperforated at'regular distances, and the uprights b are correspondinglyperforated to receive a pin which when passed through both the uprightand the spreading-bar holds the upper ends of two opposite uprights at afixed distance apart. A second modification in the form of spreading-baris shown'in F igifi, in whichbarf has right and leftthreads thereonadapted to screw into the nuts f, contacting the inner edges of twoopposite uprights. 1

Preferably at or near the upper edges of plates a are-located tensiondevices for 'coop' crating with the spreadingbars to draw the lowerportions of the plates together. In the preferred form this drawingmeans consists of-screw-threaded rods '9, adapted to pass throughthesuitab'ly-apertured upposition that said nuts contact the outer sur-'faces of said uprights. In order to protect rods 9 from the cement orother material which-is thrown between the plates for the formation ofthe wall, said rods are protected 100 which consists in the illus- I oftelescoping or interfitting Thegreason for employing of pipe is torender it posby suitable armor, tration, Fig. 2,

pieces of pipe 11. telescopic sections sible to protect the full lengthof the screw :05

when the plates "are at different distances apart. The ends of theplates are matched, for example, in the manner shown in Fig. 9, inwhichthe uprights at the ends of the plates are set in slightly from the endof one plate 11b from the surface of t and set out sli htly over theedge of the other plate. In orfer to fasten the ends together, anysuitable device inay be employed, the preferred form-being shown in Figs1 and 8. In this form studs j reject perpendicularly he uprights, and ayoke or double clip is is provided, whioh is so constructed as to itover said studs, and thus hold the plates together at the ends.

In operation the plates are brought to a proper distance apart byadjusting the uprights 1) upon the spreading-bar c and drawrod g. Thecement or other plastic material of which. the wall is to be composed.is then introduced between the form-plates a, over the upper edgethereof, until the top of the .wall has reached up to, or nearly up to,the upper edge of said plates. The wall is then permitted to hardensuflieiently to maintain itself, when the nuts h are backed d,. thusloosening the plates from the wall, at which time the entire apparatusmay be lifted until the lower edges of the platesengage the upperextremityof the wall as far as finished.

The nuts h are then tightened again until the plates are again brought.to a proper distance apart, when the operation of introducing more ofthe plastic material .is repeated. Thus the operation is continuous, forthe form-plates may be raised up from time to tiihe as the wall growshigher and the same apparatus, although comparatively small.

in height, will serve to build the wall from bottom to top. After thewall is completed the 'apparatus may be entirely removed and employedfor other walls in a similar manner,

seams What I claim, and desire to secure by L etv V tions of theadjusting mechanism for protecte ing the same.

2. Apparatus for forming plastic buildingwalls consisting of platesadapted to forin the surfaces of the walls mechanism for adjustingposition of one plate with reference to an opposite one and telescopingcover membersbetween the plates covering one or more por tions of theadwstmg'meehamsm for protectmg the same.

3. Apparatus for forming plastic buildingwalls consisting of platesadapted to form the surfaces of the wall; uprights rigidly fastened tosaid plates and extending above theupper edge thereof adjustablespreading-bars at the upper ends of said uprights; a threaded rodlocated below said spreading-bars; tele-" scoping cylinders on theoutside of said rod for protecting the same; and nutssorewing on saidrod and contacting the outsides of the apparatus for governing thedistance between the lower portion of said plates.

In witness whereof I have-hereunto subscribed my name in the presence oftwo witnesses. g

- WILLIAM E. DE LHORBE. Witnessesr HOWARD M. Cox, HENRY KAHN.

